43 lines
1.2 KiB
Text
43 lines
1.2 KiB
Text
$NetBSD: patch-hotplug_NetBSD_block,v 1.3 2016/05/21 20:12:18 bad Exp $
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Use a lock around the allocation of an unused vnd because xl(1) starts
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the hotplug scripts in parallel.
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Use "stat -L" to get device major/minor numbers through symlinks e.g. for
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lvm volumes.
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--- hotplug/NetBSD/block.orig 2014-09-02 08:22:57.000000000 +0200
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+++ hotplug/NetBSD/block 2016-05-21 17:03:35.000000000 +0200
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@@ -6,6 +6,7 @@
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DIR=$(dirname "$0")
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. "${DIR}/hotplugpath.sh"
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+. "${DIR}/locking.sh"
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PATH=${BINDIR}:${SBINDIR}:${LIBEXEC}:${PRIVATE_BINDIR}:/bin:/usr/bin:/sbin:/usr/sbin
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export PATH
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@@ -62,6 +63,7 @@
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available_disks="$available_disks $disk"
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eval $disk=free
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done
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+ claim_lock block
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# Mark the used vnd(4) devices as ``used''.
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for disk in `sysctl hw.disknames`; do
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case $disk in
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@@ -77,6 +79,7 @@
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break
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fi
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done
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+ release_lock block
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if [ x$device = x ] ; then
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error "no available vnd device"
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fi
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@@ -86,7 +89,7 @@
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device=$xparams
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;;
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esac
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- physical_device=$(stat -f '%r' "$device")
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+ physical_device=$(stat -L -f '%r' "$device")
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xenstore-write $xpath/physical-device $physical_device
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xenstore-write $xpath/hotplug-status connected
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exit 0
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